What has lots of eyes, but can’t see?

What brings you down but never up?

Count the number of triangles in the below picture?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Which is faster, Heat or Cold ? Explain.

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

How many triangles are there in the picture below?

What does an Island and the letter T have in common?